Removal and replacement procedures 54
6.
Remove the DIMM.
To replace the component, reverse the removal procedure.
Memory configurations
This server supports 2 GB to 128 GB of Advanced ECC system memory using 1-GB, 2-GB, 4-GB, and 8-GB
registered DDR-2 DIMMS across 16 DIMM slots. Depending on the quantity and speed of DIMMs populated,
memory bus speeds can be 533-MHz, 667-MHz, or 800-MHz. The memory bus speed is determined by
using the following two-step process.
1.
The BIOS interrogates each DIMM installed in the system and sets the memory bus speed to the least
common denominator of the DIMM speeds detected, regardless of the RBSU menu option selected. For
example, with 667-MHz and 800-MHz DIMMs installed, this first step should complete with the memory
bus speed set to 667 MHz regardless of how many DIMMs are installed on each processor.
2.
With this step, the following RBSU menu option settings determine the actual memory bus speed that is
selected.
o
Menu Option 1 = Auto (default)
Memory bus speed is determined by the number of DIMMs installed for each processor:
—
Auto Case 1: Four or less DIMMs = 800-MHz memory bus speed provided that all DIMMs
detected in step 1 are rated for 800 MHz.
—
Auto Case 2: Six DIMMs = 667-MHz memory bus speed provided that all DIMMs detected in
step 1 are rated for 667 MHz or greater.
—
Auto Case 3: Eight DIMMs = 533-MHz memory bus speed provided that all DIMMs detected in
step 1 are rated for 533 MHz or greater.
o
Menu Option 2 = 533 MHz
—
Memory bus speed is set to 533 MHz regardless of how many DIMMs are installed provided
that all DIMMs detected in step 1 are rated for 533 MHz or greater.
The following rules must be followed when installing DIMMs in this server:
•
DIMMs must be installed in pairs while following the population rules listed in the table below.
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Страница 62: ...Cabling 62 Cabling SAS hard drive cabling Battery cabling for BBWC ...
Страница 79: ...Component identification 79 For more information see Hot plug fan operation Hot plug fan on page 36 ...